Multi-Span Tunnel

1.Product Brief

Multi-Span Tunnel,also called gutter-connected multi-span plastic greenhouse,is assembled by connecting multiple single arched tunnels via shared galvanized rain gutters into one large integrated growing space.

Constructed with hot-dip galvanized steel skeleton and covered with agricultural plastic film,this multi-span tunnel features low construction cost,easy installation and complete climate control capacity.It is widely adopted for commercial large-scale crop planting across the world.

2.Structure Details

Steel Frame

Full hot-dip galvanized round steel pipes,anti-rust and anti-corrosion,service life over 15 years

Custom span:6m/8m/10m/12m;ridge height 2.8–5m

Reinforced structure to resist strong wind and heavy snow

Integrated drainage gutter between spans for centralized rainwater discharge

Cover Film Options

PO Film:High light transmittance,anti-fog anti-drip,3–5 years service life

PE Film:Cost-effective,2–3 years service life

Double-layer inflatable film:Good heat preservation for cold areas

3.Optional Supporting Equipment

Cooling system:Exhaust fan+cooling pad

Ventilation:Electric top&side rolling film vents

Shading&thermal insulation screens

Drip/sprinkler irrigation&water-fertilizer integrated machine

Intelligent PLC control cabinet,heating system,CO₂generator,seedling beds

4.Key Advantages

High land utilization rate,no wasted gaps between separate tunnels

Large smooth interior space for tractors and automated farming equipment

Stable uniform temperature,humidity and light inside the tunnel

Lower investment than glass/polycarbonate greenhouses,easy film replacement

Fully customizable size and supporting systems for different climates and crops

5.Applications

Commercial vegetables,cut flowers,plug seedlings,strawberries,grapes,hydroponic factories,agricultural picking gardens and demonstration farms.